Question
Express $212^{\circ} F$ on the Celsius scale.

Answer

$\begin{aligned} & \mathrm{C}=\frac{5}{9}(\mathrm{~F}-32) \\ & =\frac{5}{9}(212-32) \\ & =100^{\circ} \mathrm{C} \\ & \Rightarrow 212^{\circ} \mathrm{F}=100^{\circ} \mathrm{C}\end{aligned}$

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